Ventilating-sash lock.



S. G. WELLMAN.

VENTILATING SASH LocK.

APPLlCATION FILED DEC. I, I9I5.

Patented June 20, 1916.

UNITED as ear @FFfQE.

VENTILATING-SASH LOCK.

Specification of Letters Patent.

Patented June '20, 1916.

Application filed. December 1, 1915. Serial No. 64,476.

To all whom it may concern:

Be it known that I, SAMUEL G. VVELLMAN, a citizen of the United States, residing at Bradford, in the county of McKean and State 'of Pennsylvania, have, invented certain new useful Improvements in Ventilating-Sash Locks, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to certain new and useful improvements on sash locks and more particularly to the general construction of sash look as shown in my Patents No. 751,586, dated February 9, 1904, and No. 959,981, datedMay 31, 1910; the object being to improve the general construction and to provide novel means for mounting the dog within the housing.

Another object of my invention is to provide a sash lock in which the dog and key are connected together and mounted within the housing within a suitable guide-frame arranged therein, so thattheparts can be quickly assembled and after having been assembled, can be held in their proper positions in respect to each other.

Other and further objects and advantages of the invention will behereinafter set forth and the novel features thereof defined by the appended claims.

In the drawing, Figure '1, is a perspective of my improved construction of sash fastener showing the application of the same to a window frame, the sash being shown with a rack to engage the dog of the fastener; Fig. 2, is a section through the housing showing the manner of mounting the dog and key; and Fig. 3, is a perspective of the housing, guide frame, dog and key,in position to be assembled.

Like numerals of reference refer to like parts in the several figures of the drawings.

In the drawing", 1 indicates a window frame provided with the usual stile 2 forming a groove to receive the window sash 3 which is provided with a rack 4 constructed substantially the same as shown in my Patent No. 959,981,dated May 31. 1910, although it is, of course, understood that various forms of rack can be used in connection with my improved construction of sash fastener, as will be hereinafter fully described, without departing fromthe spirit of my invention.

' My improved construction of sash lock, comprises a substantiallycylindrical casing 5 adapted to be embedded within a suit'able opening formed in the frame 1; said casing having oppositely disposed guide-ways'ti in which is mounted a guide-frame 7 adapted to receive a dogS to which is connected a key 9, said frame having a configuration conforming in shape to the configuration of the dog 8 and key 9 in cross section, the lower portion of the dog having a lug 11 adapted to fit within a coil spring 10 seated within the bottom of the casing and normally holding the key and dog in extended position, as shown in Figs. 1 and 2.

The guide-ways 6 form projections on the periphery of the casing 5 so that when the casing is driven into the opening of the frame 1, the casing will be prevented from turning within the opening.

The side of the "casing adjacent the stile 2 is flattened as shown at 12 and the edge of the casing is provided with lugs 13 adapted to extend through suitable openings formed in a face-plate 1 1 and be 'swaged so as to secure the face-plate to the casing as shown in Fig. 1.

The face-plate is provided with a flanged end portion 15 embracing the inner face of the stile 2 having spaced guards 16 projecting outwardly therefrom between which the head 9 of the key is adapted to work, said head having a flange 9 adapted to be engaged by a lock pin 17 slidably mounted in the lower guard 16.

The plate 14 is provided with a suitable opening through which the dog 8 extends so as to bring the same into engagement with the rack 4 of the window sash when the sash is in position within the frame, so that the window frame will be locked in its adjusted positionby said dog. When it is desired to allow the sash to move freely within the frame, the key 9 is pressed inwardly until the head thereof isbeyond the locking pin 17 and by pressing upwardly on the pin 17, the head thereof will embrace the flange 9 of the head of the key so as to hold the dog out of the path of travel of the rack and the window sash can be raised and lowered in the ordinary manner. The flange 15 of the plate 14: is cut away as shown at 18 to receive the key 9 and when the plate it is removed, the dog and key can be withdrawn from the casing. The,

plate 14 is also provided with an extension 14 separated from the main portion of the plate by a groove in order to allow the same to be broken off when desired {this extension being used when an exceptionally wide sash is employed within the frame and by the use of such extension, the plate can be positioned within the groove of the window frame. When used in a narrow groove, the

' extension is removed so as to allow the plate to be forced into position, as shown in Fig.1.

The plate 14 is preferably embedded with-' in the bottom of the groove, of the stile of the window frame and can be secured there- Y in, in any desired manner,-although I have found that by securing the casing firmly within the opening of the frame, the plate v 7 means of fastening thesame within the frame. 7

From the foregoing description, it will be seen that I have provided a sash lock composed of a casing adapted to be embedded within a windowframe, having a face-plate provided with a flange-to embrace the stile of the frame; saidplate having openings to receive the dog and key so that the same can 7 be readily operated to throw the dog out of the path of travel of the rack of the window sash. It will also beseen that an exceptionally simple and cheap construction is provided and one in which novel means is employed for mounting the dog and key within the casing.

I claim: I

1. A sash lock, comprising a casing, a frame arranged within said casing, a dog slidably mounted within said frame, a plate arranged over said casing having openings to receive said dog, and a key carried by said dog extending outwardly therefrom.

2. A sash lock, comprising a casing having oppositely disposed guide-ways, a frame mounted in said guide-ways and held therein by friction, a dog slidably mounted in said frame having a projecting lug, a spring arranged within said casing embracing said lug, and a key carried by said dog and extending outwardly therefrom.

3. A sash lock, comprising a casing adapted to be embedded within the window frame, having lugs projecting. therefrom, a plate provided with openings to receive said lugs, said plate having an opening, a spring-actuated dog slidably mounted within said casing extending outwardly through said open ing, and a key carried by said dog.

4:. A sash lock, comprising a casing having oppositely'disposed projections adapted to be. embeddedwithin an opening formed in a windowframe, a face, plate arranged over said casing having an opening, a frame arranged within said casing, a dog slidably mounted within said frame, a spring for normally holding said dog in extended position, and a key carried by said dog extending outwardly therefrom.

5. A sash lock, comprising a casing adapted to be embedded within a window frame, a frame secured within said casing, a flanged face-plate arranged over said casing, said plate having an opening in the body thereof and'a flange cut away centrally, a dog slidably mounted within said frame extending outwardly through the opening of said face-plate, and a key carried by said dog working in the cut away portion of the flange of the plate.

6. A sash lock, comprising a casing adapted to be embedded within a window frame having a frame secured therein, a spring arranged under said frame, a dog working in said frame having a keycarried thereby, a face-plate provided with an opening to receive said dog arranged over said casing, said face-plate having a flange provided with a central cut away portion, and a key carried by said dog within said casing having a portion extending. outwardly through the cut away portion of the flange.

7; In a sash lock, a casing having a frame secured therein, a spring arranged under said frame, a dog slidably mounted in said frame having a lug projecting within, said spring, a face-plate extending over said casing having an opening to receive said lug, said face-plate being provided with a flange having a central cutaway portion and provided withv spaced guards, a key carried by said dog working in the cut away portion of said flange, said keyhaving ahead arranged betweenthe guards of said flange.

. 8. In a sash lock'. the combination'with a window frame having a stile and provided with an opening, inythe body thereof ad-" jacent said stile, of a casing provided with oppositely disposed projections secured within said opening, a frame arranged within said casing, a spring arranged under said frame, a dog slidably mounted within said frame having a projection extending 1 within said spring, a face-plate secured over said caslng provided with an opening to receive said dog, a flange formed on said face-plate embracing the stile of the window I frame, said flange having a central cut-away portion and provided. with spaced guards, and a key carried by said dogworking in the frame of said casing and having a portion extending out through the cut-away portion of said flange, said key terminating in a head arrangedbetweenthe guards of said flange. 1 A

9. A sash lock, comprising a casing having outwardly projecting lugs, a face-plate having openings to receive said lugs, a frame In testimony whereof I hereunto affix my arranged Within said casing, a spring arsignature in the presence of two Witnesses.

ranged under said frame, a dog slidably mounted in said frame extending outwardly SAMUEL WELLMAN' through the opening formed in said plate, Witnesses:

and a key carried by said dog extending E. F. SHELDON,

outwardly therefrom. E. J. STEELE.

copiel of this patent may be obtained for five cents each, by addressing the commissioner or Patentu. Washington, D. C. 

